From 6df86f93f67ff61f4e3bbb28fdc20a2a6991da05 Mon Sep 17 00:00:00 2001
From: Otto Kekäläinen <otto@debian.org>
Date: Fri, 12 Jan 2024 11:18:47 +0800
Subject: tests: Avoid busting container layer cache on every file change

---
 packaging/run-in-docker | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packaging/run-in-docker b/packaging/run-in-docker
index 9a3a2ef4..9dffc776 100755
--- a/packaging/run-in-docker
+++ b/packaging/run-in-docker
@@ -69,8 +69,12 @@ run set -euvx \
   && apt-get update -y \
   && apt-get -y --no-install-recommends install \
        build-essential devscripts equivs
+copy debian debian
+run mk-build-deps -r -i debian/control -t 'apt-get -y -o Debug::pkgProblemResolver=yes --no-install-recommends'
+# To avoid constantly invalidating previous container layers, run the slow
+# dependency installation early and copy files (along with any changed files)
+# later
 copy . .
-run yes | mk-build-deps -ir
 run groupadd luser && useradd -g luser luser && chown -R luser:luser ..
 user luser
 EOF
-- 
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